Hi all,
 
I haven't actually DONE this, so maybe I shouldn't put my 2 cents in, but can't 
you refine the polarization factor by using a standard such as Y2O3 and fixing 
the structure and thermal parameters of the standard while refining the 
polarization angle?
 
The angle so obtained should agree with what the theory tells you for your 
diffractometer configuration, but it seems more comforting to verify it by a 
measurement.
 
- Kurt

________________________________

From: alor...@unex.es [mailto:alor...@unex.es]
Sent: Sat 7/25/2009 1:29 PM
To: Leonid Solovyov
Cc: rietveld_l@ill.fr
Subject: Re: LP factor in the Rietveld refinement



In this context:

What about the LP for a Goebel mirror followed by a 4-bounce or 2-bounce
primary monochromator?

Best regards

angel l. ortiz

>
> As far as I know, for X-ray mirrors the LP angle is near zero.
>
> Leonid
>
> *******************************************************
>  Leonid A. Solovyov
>  Institute of Chemistry and Chemical Technology
>  660049, K. Marx 42, Krasnoyarsk , Russia
>  www.icct.ru/eng/content/persons/Sol_LA
>  www.geocities.com/l_solovyov
> *******************************************************
>
> --- On Sat, 7/25/09, chu...@hkusua.hku.hk <chu...@hkusua.hku.hk> wrote:
>
>> From: chu...@hkusua.hku.hk <chu...@hkusua.hku.hk>
>> Subject: Re: LP factor in the Rietveld refinement
>> To: "Ross H Colman" <ucca...@ucl.ac.uk>
>> Cc: rietveld_l@ill.fr
>> Date: Saturday, July 25, 2009, 4:16 AM
>> Dear Ross,
>>
>> How about the LP factor/monochromator angle if using Gobel
>> mirror in 
>> my D8 system?
>>
>> Thanks!
>>
>> stephen
>>
>
>
>
>
>






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